/**
 * Renders a scene with a camera
 * @param graphics GameLib.D3.Graphics
 * @param apiRenderer GameLib.D3.API.Renderer
 * @constructor
 */
GameLib.D3.Renderer = function (
    graphics,
    apiRenderer
) {

    this.graphics = graphics;
    this.graphics.isNotThreeThrow();

    if (GameLib.Utils.UndefinedOrNull(apiRenderer)) {
        apiRenderer = {};
    }

	if (apiRenderer instanceof GameLib.D3.Renderer) {
		return apiRenderer;
	}

    GameLib.D3.API.Renderer.call(
        this,
        apiRenderer.id,
        apiRenderer.name,
        apiRenderer.autoClear,
        apiRenderer.localClipping,
        apiRenderer.width,
        apiRenderer.height,
        apiRenderer.preserveDrawingBuffer,
        apiRenderer.domElement,
        apiRenderer.clearColor,
        apiRenderer.parentEntity
    );

    this.clearColor = new GameLib.Color(
        this.graphics,
        this.clearColor,
        this
    );

    if (this.domElement instanceof GameLib.API.DomElement) {
        this.domElement = new GameLib.DomElement(
            this.domElement
        );
    }

    GameLib.Component.call(
        this,
        GameLib.Component.COMPONENT_RENDERER,
        {
            'domElement'    : GameLib.DomElement
        }
    );

};

GameLib.D3.Renderer.prototype = Object.create(GameLib.D3.API.Renderer.prototype);
GameLib.D3.Renderer.prototype.constructor = GameLib.D3.Renderer;

/**
 * Create Renderer Instance
 * @param update
 * @returns {*}
 */
GameLib.D3.Renderer.prototype.createInstance = function(update) {

    var instance = null;

    if (update) {
        instance = this.instance;
    } else {
        instance = new THREE.WebGLRenderer({
            canvas : this.domElement.instance
        });
    }

    instance.localClippingEnabled = this.localClipping;

    instance.setSize(
        this.width,
        this.height
    );

    instance.setClearColor(
        new THREE.Color(
            this.clearColor.r,
            this.clearColor.g,
            this.clearColor.b
        ),
        1 - this.clearColor.a
    );

    instance.domElement.width = this.width;
    instance.domElement.height = this.height;

    instance.autoClear = this.autoClear;
    instance.preserveDrawingBuffer = this.preserveDrawingBuffer;

    return instance;
};

GameLib.D3.Renderer.prototype.updateInstance = function() {
    this.instance = this.createInstance(true);
};

GameLib.D3.Renderer.prototype.toApiObject = function() {

    var apiRenderer = new GameLib.D3.API.Renderer(
        this.id,
        this.name,
        this.autoClear,
        this.localClipping,
        this.width,
        this.height,
        this.preserveDrawingBuffer,
        this.domElement.toApiObject(),
        GameLib.Utils.IdOrNull(this.parentEntity)
    );

    return apiRenderer;
};

/**
 *
 * @param graphics
 * @param objectComponent
 * @returns {GameLib.D3.Renderer}
 * @constructor
 */
GameLib.D3.Renderer.FromObject = function(graphics, objectComponent) {

    var apiRenderer = GameLib.D3.API.Renderer.FromObject(objectComponent);

    return new GameLib.D3.Renderer(
        graphics,
        apiRenderer
    );
};

GameLib.D3.Renderer.prototype.render = function() {
    this.instance.render(this.scene.instance, this.camera.instance);
};

GameLib.D3.Renderer.prototype.setSize = function(width, height) {
    this.width = width;
    this.height = height;
    this.updateInstance();
};